I finally sat down this weekend and started actually planning specific hardware. What I found was that if I bought all custom buttons and joysticks, the price quickly exceeded the cost of a standard controller (especially when you take used controllers into account). My thoughts are that yes, a completely custom controller would be optimal, but I could quickly make some attachments for a standard controller that would make a lot of people happy.

So, I'll start there. I'm designing modules that can be added to the controller to change your hand orientation. These could possibly be used without any modification to the controller itself, though I'll probably relocate/replace some buttons to make things easier for Thomas. I will probably also cut the controller in half to make it easier for each hand to be in its own comfortable place.

I'll have to read the thread in a bit more detail, but a quick message to say I'd love to help if I can. 3D modelling is my day job and I have some 3d printing experience. I've got a 3d printer on order for home that should be here in a few weeks, but have access to a Fab Lab to test things in the mean time.

As you can see, I'm jumping all over the place. I've been talking to people on the ablegamers.com forum and it seems there is quite a need for game specific hardware for people with disabilities. Here are a simple d-pad and 4 button combo I tossed together today. These would have velcro on the back and could be placed wherever it would be convenient.

This version uses 6mm momentary siwtches which require a little over 100 grams to depress. I need to design another version with levers inside to reduce this down to below 30grams required as this is a common problem.

Here's a version of a low effort switch (less than 30 grams required to depress) . The cost,$77, is shocking to me. I've actually already designed and printed my own version of this that works well for virtually nothing in comparison.

It isn't super exact, but I put them on a scale and zeroed it, then slowly pushed and watched for the number when they depressed. On their own I was getting 100-110 grams of pressure. With the lever, I was getting roughly 30.

I really like these switches for this because they are DIRT CHEAP. So I plan on just doing some creative levers to get the force required down.

Also, the current gen Xbox controllers have a 4 way dpad osgeld! I have a few analog sticks on the way too, so don't worry.